/* Reset and base styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-color: #667eea;
    --secondary-color: #764ba2;
    --accent-color: #f093fb;
    --text-primary: #2d3748;
    --text-secondary: #4a5568;
    --text-light: #718096;
    --bg-primary: #ffffff;
    --bg-secondary: #f7fafc;
    --bg-dark: #1a202c;
    --shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    --shadow-hover: 0 20px 40px rgba(0, 0, 0, 0.15);
    --gradient: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    --gradient-accent: linear-gradient(135deg, var(--accent-color), var(--primary-color));
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', sans-serif;
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--bg-primary);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    transition: all 0.3s ease;
    border-bottom: 1px solid rgba(0, 0, 0, 0.1);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 1rem 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-logo a {
    font-size: 1.5rem;
    font-weight: 700;
    text-decoration: none;
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.nav-link {
    text-decoration: none;
    color: var(--text-primary);
    font-weight: 500;
    transition: color 0.3s ease;
    position: relative;
}

.nav-link:hover {
    color: var(--primary-color);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient);
    transition: width 0.3s ease;
}

.nav-link:hover::after {
    width: 100%;
}

.nav-toggle {
    display: none;
    flex-direction: column;
    cursor: pointer;
}

.bar {
    width: 25px;
    height: 3px;
    background: var(--text-primary);
    margin: 3px 0;
    transition: 0.3s;
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    background: linear-gradient(135deg, #f7fafc 0%, #edf2f7 100%);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><circle cx="20" cy="20" r="2" fill="%23667eea" opacity="0.1"/><circle cx="80" cy="80" r="2" fill="%23764ba2" opacity="0.1"/><circle cx="40" cy="60" r="1" fill="%23f093fb" opacity="0.1"/></svg>');
    pointer-events: none;
}

.hero-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
    position: relative;
    z-index: 1;
}

.hero-content {
    animation: slideInLeft 1s ease-out;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 1rem;
}

.highlight {
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.5rem;
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
    font-weight: 500;
}

.hero-description {
    font-size: 1.1rem;
    color: var(--text-light);
    margin-bottom: 2rem;
    line-height: 1.8;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.btn {
    padding: 12px 24px;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
    display: inline-block;
    border: none;
    cursor: pointer;
    font-size: 1rem;
}

.btn-primary {
    background: var(--gradient);
    color: white;
    box-shadow: var(--shadow);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-hover);
}

.btn-secondary {
    background: transparent;
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
}

.btn-secondary:hover {
    background: var(--primary-color);
    color: white;
    transform: translateY(-2px);
}

.hero-image {
    display: flex;
    justify-content: center;
    animation: slideInRight 1s ease-out;
}

.profile-image {
    width: 300px;
    height: 300px;
    border-radius: 50%;
    overflow: hidden;
    box-shadow: var(--shadow);
    position: relative;
}

.profile-image::before {
    content: '';
    position: absolute;
    top: -5px;
    left: -5px;
    right: -5px;
    bottom: -5px;
    background: var(--gradient);
    border-radius: 50%;
    z-index: -1;
}

.profile-glitch {
    position: relative;
    width: 100%;
    height: 100%;
}

.profile-glitch img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    position: absolute;
    top: 0;
    left: 0;
    transition: opacity 0.1s ease;
}

.profile-glitch .profile-img-1 {
    z-index: 2;
    animation: glitchSwitch 4s infinite;
}

.profile-glitch .profile-img-2 {
    z-index: 1;
    opacity: 0;
    animation: glitchSwitch 4s infinite 2s;
}

.profile-image:hover .profile-glitch .profile-img-1,
.profile-image:hover .profile-glitch .profile-img-2 {
    animation: glitchEffect 0.3s infinite, glitchSwitch 1s infinite;
}

@keyframes glitchSwitch {
    0%, 45% {
        opacity: 1;
    }
    50%, 95% {
        opacity: 0;
    }
    100% {
        opacity: 1;
    }
}

@keyframes glitchEffect {
    0% {
        transform: translate(0);
        filter: hue-rotate(0deg);
    }
    10% {
        transform: translate(-2px, 2px);
        filter: hue-rotate(90deg);
    }
    20% {
        transform: translate(-2px, -2px);
        filter: hue-rotate(180deg);
    }
    30% {
        transform: translate(2px, 2px);
        filter: hue-rotate(270deg);
    }
    40% {
        transform: translate(2px, -2px);
        filter: hue-rotate(360deg);
    }
    50% {
        transform: translate(-2px, 2px);
        filter: hue-rotate(45deg);
    }
    60% {
        transform: translate(-2px, -2px);
        filter: hue-rotate(135deg);
    }
    70% {
        transform: translate(2px, 2px);
        filter: hue-rotate(225deg);
    }
    80% {
        transform: translate(2px, -2px);
        filter: hue-rotate(315deg);
    }
    90% {
        transform: translate(-2px, 2px);
        filter: hue-rotate(0deg);
    }
    100% {
        transform: translate(0);
        filter: hue-rotate(0deg);
    }
}

.scroll-indicator {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    animation: bounce 2s infinite;
    color: var(--primary-color);
    font-size: 1.5rem;
}

/* Section Styles */
section {
    padding: 5rem 0;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    text-align: center;
    margin-bottom: 3rem;
    position: relative;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 4px;
    background: var(--gradient);
    border-radius: 2px;
}

/* About Section */
.about {
    background: var(--bg-secondary);
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.about-text p {
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
    line-height: 1.8;
}

.about-stats {
    display: flex;
    gap: 2rem;
    margin-top: 2rem;
}

.stat {
    text-align: center;
}

.stat h3 {
    font-size: 2rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

.stat p {
    color: var(--text-light);
    font-size: 0.9rem;
}

.about-img-container {
    width: 100%;
    height: 400px;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: var(--shadow);
}

.about-img-container img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* Skills Section */
.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    max-width: 1400px;
    margin: 0 auto;
}

.skill-category {
    background: var(--bg-primary);
    padding: 2rem;
    border-radius: 20px;
    box-shadow: var(--shadow);
    transition: transform 0.3s ease;
}

.skill-category:hover {
    transform: translateY(-5px);
}

.skill-category h3 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
    color: var(--primary-color);
}

.skill-items {
    display: flex;
    flex-wrap: wrap;
    gap: 0.8rem;
}

.skill-item {
    background: var(--bg-secondary);
    padding: 0.5rem 1rem;
    border-radius: 25px;
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-secondary);
    transition: all 0.3s ease;
    border: 1px solid transparent;
}

.skill-item:hover {
    background: var(--gradient);
    color: white;
    transform: translateY(-2px);
}

/* Projects Section */
.projects {
    background: var(--bg-secondary);
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
}

.project-card {
    background: var(--bg-primary);
    border-radius: 20px;
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: all 0.3s ease;
}

.project-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-hover);
}

.project-image {
    position: relative;
    height: 250px;
    overflow: hidden;
}

.project-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.project-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.8);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.project-card:hover .project-overlay {
    opacity: 1;
}

.project-card:hover .project-image img {
    transform: scale(1.1);
}

.project-links {
    display: flex;
    gap: 1rem;
}

.project-link {
    width: 50px;
    height: 50px;
    background: var(--gradient);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    text-decoration: none;
    transition: transform 0.3s ease;
}

.project-link:hover {
    transform: scale(1.1);
}

.project-content {
    padding: 2rem;
}

.project-content h3 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.project-content p {
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
    line-height: 1.6;
}

.project-tech {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.tech-tag {
    background: var(--bg-secondary);
    padding: 0.3rem 0.8rem;
    border-radius: 15px;
    font-size: 0.8rem;
    font-weight: 500;
    color: var(--primary-color);
}

/* Project Placeholders */
.project-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 4rem;
    color: white;
    transition: all 0.3s ease;
}

.project-placeholder.blockchain {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.project-placeholder.ai {
    background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
}

.project-placeholder.nlp {
    background: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
}

.project-placeholder.weather {
    background: linear-gradient(135deg, #43e97b 0%, #38f9d7 100%);
}

.project-placeholder.gaming {
    background: linear-gradient(135deg, #fa709a 0%, #fee140 100%);
}

.project-placeholder.minimalist {
    background: linear-gradient(135deg, #a8edea 0%, #fed6e3 100%);
}

/* Featured Projects */
.project-card.featured {
    border: 2px solid var(--primary-color);
    position: relative;
    overflow: visible;
}

.project-card.featured::before {
    content: '⭐ Featured';
    position: absolute;
    top: -10px;
    right: 20px;
    background: var(--gradient);
    color: white;
    padding: 5px 15px;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
    z-index: 10;
}

.project-card.featured:hover {
    transform: translateY(-15px) scale(1.02);
    box-shadow: 0 30px 60px rgba(102, 126, 234, 0.3);
}

/* Enhanced project hover effects */
.project-placeholder i {
    transition: all 0.3s ease;
}

.project-card:hover .project-placeholder i {
    transform: scale(1.2) rotate(5deg);
}

/* GitHub and Demo link styling */
.project-link[title="View on GitHub"] {
    background: linear-gradient(135deg, #333 0%, #666 100%);
}

.project-link[title="Live Demo"] {
    background: var(--gradient);
}

/* Responsive adjustments for new placeholders */
@media screen and (max-width: 768px) {
    .project-placeholder {
        font-size: 3rem;
    }
    
    .project-card.featured::before {
        font-size: 0.7rem;
        padding: 3px 10px;
        right: 10px;
    }
}

/* Contact Section */
.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: start;
}

.contact-info h3 {
    font-size: 2rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.contact-info p {
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
    line-height: 1.8;
}

.contact-methods {
    margin-bottom: 2rem;
}

.contact-method {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1rem;
    font-size: 1.1rem;
    color: var(--text-secondary);
}

.contact-method i {
    width: 20px;
    color: var(--primary-color);
}

.social-links {
    display: flex;
    gap: 1rem;
}

.social-link {
    width: 50px;
    height: 50px;
    background: var(--gradient);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    text-decoration: none;
    transition: all 0.3s ease;
}

.social-link:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow);
}

.x-logo {
    font-size: 1.5rem;
    font-weight: bold;
    color: white;
}

/* Contact Form */
.contact-form {
    background: var(--bg-primary);
    padding: 2rem;
    border-radius: 20px;
    box-shadow: var(--shadow);
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 1rem;
    border: 2px solid var(--bg-secondary);
    border-radius: 10px;
    font-size: 1rem;
    font-family: inherit;
    transition: border-color 0.3s ease;
    background: var(--bg-secondary);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    background: var(--bg-primary);
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

/* Footer */
.footer {
    background: var(--bg-dark);
    color: white;
    text-align: center;
    padding: 2rem 0;
}

/* Animations */
@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% {
        transform: translateY(0) translateX(-50%);
    }
    40% {
        transform: translateY(-10px) translateX(-50%);
    }
    60% {
        transform: translateY(-5px) translateX(-50%);
    }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Responsive Design */
@media screen and (max-width: 768px) {
    .nav-menu {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background-color: white;
        width: 100%;
        text-align: center;
        transition: 0.3s;
        box-shadow: var(--shadow);
        padding: 2rem 0;
    }

    .nav-menu.active {
        left: 0;
    }

    .nav-toggle {
        display: flex;
    }

    .nav-toggle.active .bar:nth-child(2) {
        opacity: 0;
    }

    .nav-toggle.active .bar:nth-child(1) {
        transform: translateY(8px) rotate(45deg);
    }

    .nav-toggle.active .bar:nth-child(3) {
        transform: translateY(-8px) rotate(-45deg);
    }

    .hero-container {
        grid-template-columns: 1fr;
        gap: 2rem;
        text-align: center;
        padding: 2rem 20px;
    }

    .hero-title {
        font-size: 2.5rem;
    }

    .hero-subtitle {
        font-size: 1.2rem;
    }

    .profile-image {
        width: 250px;
        height: 250px;
    }

    .about-content {
        grid-template-columns: 1fr;
        gap: 2rem;
        text-align: center;
    }

    .about-stats {
        justify-content: center;
    }

    .contact-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .skills-grid {
        grid-template-columns: 1fr;
    }

    .projects-grid {
        grid-template-columns: 1fr;
    }

    section {
        padding: 3rem 0;
    }
}

@media screen and (max-width: 480px) {
    .hero-title {
        font-size: 2rem;
    }

    .section-title {
        font-size: 2rem;
    }

    .about-stats {
        flex-direction: column;
        gap: 1rem;
    }

    .profile-image {
        width: 200px;
        height: 200px;
    }

    .btn {
        width: 100%;
        text-align: center;
    }
}

/* Utility Classes */
.text-center {
    text-align: center;
}

.mb-1 { margin-bottom: 1rem; }
.mb-2 { margin-bottom: 2rem; }
.mb-3 { margin-bottom: 3rem; }

.fade-in {
    animation: fadeInUp 0.6s ease-out;
}

/* Smooth transitions for all interactive elements */
a, button, .project-card, .skill-category {
    transition: all 0.3s ease;
}

/* Custom scrollbar */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: var(--bg-secondary);
}

::-webkit-scrollbar-thumb {
    background: var(--gradient);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--secondary-color);
}